cia head david petraeus said the affair lasted from december 2011 until four months ago. paula broadwell co-offset a biography on petraeus and made multiple trips to afghanistan -- co-authored a biography on petraeus. investigators are reported to have found that she had access to sensitive documents about afghanistan. agents searched her family home in north carolina on monday night. but there is another high-level figure involved. the pentagon is now investigating general john palin, the palinisaf -- general john allen, the current isaf commander in afghanistan. >> general allan is entitled to due process in this matter. in the meantime, the secretary has asked the president, and the president has agreed, to put his nomination on hold until the relevant facts are determined. >> and white house spokesman says president barack obama was surprised by the petraeus revelations -- a white house spokesman said. they come just as the administration heads into its second term. >> for more on this developing story, we are joined by our washington correspondent. how serious are th